Review
Crystallography
Tingting Yan, Dongyang Xi, Qiuxue Fang, Ye Zhang, Junhai Wang, Xiaodan Wang
Summary: High-pressure polymorphism is a developing interdisciplinary field that utilizes pressure to explore the nature of structure-property relationships in hydrogen-bonded polymorphic systems. This review discusses the use of pressure in studying polymorphism and surveys the compounds studied at high pressures by the author's group. Insight gained from these studies has allowed for crystal engineering and the design of crystals with desired architectures through hydrogen-bonded networks. Experimental methods and techniques for analyzing high-pressure polymorphs are also briefly discussed.
Article
Materials Science, Ceramics
Zhi Zheng, Bingliang Liang, Jing Gao, Jianyi Ren, Zhiyong Liu, Xue Hou, Jianhui Sun, Shenghua Mei
Summary: In this study, the dielectric properties of (FeCoCrMnZn)3O4 under high pressure were systematically investigated. It was found that high pressure has a significant impact on the dielectric properties, even without observed phase transition. The electric resistance decreases exponentially with increasing pressure, while the relative permittivity decreases linearly. Additionally, the dielectric relaxation behavior of (FeCoCrMnZn)3O4 under high pressure was revealed.
CERAMICS INTERNATIONAL
(2023)
Article
Geochemistry & Geophysics
Yanxia Li, Richen Zhong, Zhiyong Ni, Hao Cui, Sipeng Li, Xueyin Yuan, Huan Chen, Chang Yu
Summary: In this study, the high pressure and temperature solubility of sylvite in the KCl-H2O system is determined using a new method. The results are combined with previous literature to establish the relationship between solubility and pressure-temperature conditions. The study also highlights the limitations of simplifying fluid inclusions and the potential underestimation of fluid salinities and homogenization pressure.
Article
Chemistry, Physical
Camilla H. Kronbo, Francesca Menescardi, Davide Ceresoli, Martin Bremholm
Summary: The synthesis and high pressure behavior of three polymorphs of SrGeO3 were reported. Different compressibility and phase transitions were observed in the three polymorphs, with the perovskite polymorph exhibiting the highest bulk modulus. The experimental data were well-fitted by density functional theory calculations.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Geosciences, Multidisciplinary
Sean R. Shieh, Wen-Pin Hsieh, Yi-Chih Tsao
Summary: This study investigates the thermal conductivity of hydrogen (H2) under high pressure and temperature conditions. The results show that the thermal conductivity of liquid H2 is relatively low, ranging from 0.7-1.1 W m-1 K-1 at high pressures and room temperature. However, the appearance of solid H2 significantly increases the thermal conductivity, reaching approximately 27 W m-1 K-1 at 60.2 GPa and room temperature. The findings contribute to a better understanding of thermal transport in H2 under extreme conditions and can aid in the modeling of planetary systems with H2.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Matteo Ceppatelli, Demetrio Scelta, Manuel Serrano-Ruiz, Kamil Dziubek, Marta Morana, Volodymyr Svitlyk, Gaston Garbarino, Tomasz Poreba, Mohamed Mezouar, Maurizio Peruzzini, Roberto Bini
Summary: Chemical reactivity between As and N-2 leads to the synthesis of crystalline arsenic nitride under high pressure and temperature conditions. X-ray diffraction provides evidence for the formation of a covalent compound of AsN stoichiometry. Additional data indicate the existence of AsN at room temperature in a wide pressure range, with implications for pnictogens chemistry and the synthesis of advanced materials.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
J. Bi, Y. Nakamoto, P. Zhang, Y. Wang, L. Ma, B. Zou, K. Shimizu, H. Liu, M. Zhou, H. Wang, G. Liu, Y. Ma
Summary: This study demonstrates that the substitutional La-Y alloy tetrahydride (La,Y)H-4 exhibits high superconducting temperature above 90 K at a reduced pressure compared to unalloyed binary YH4. Additionally, (La,Y)H-4 can be recovered down to about 80 GPa, showing great potential for high-temperature superconductivity at even lower pressures.
MATERIALS TODAY PHYSICS
(2022)
Article
Instruments & Instrumentation
I. Breslavetz, A. Delhomme, T. Pelini, A. Pawbake, D. Vaclavkova, M. Orlita, M. Potemski, M. A. Measson, C. Faugeras
Summary: The experimental setup is developed for optical spectroscopy experiments under extreme conditions and enables in-depth exploration of the phase diagram of condensed matter systems. It is applied to the study of bulk FePS3, a layered antiferromagnet with a Neel temperature of T & AP; 120 K.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Chemistry, Multidisciplinary
Andrey Aslandukov, Pascal L. Jurzick, Maxim Bykov, Alena Aslandukova, Artem Chanyshev, Dominique Laniel, Yuqing Yin, Fariia I. Akbar, Saiana Khandarkhaeva, Timofey Fedotenko, Konstantin Glazyrin, Stella Chariton, Vitali Prakapenka, Fabrice Wilhelm, Andrei Rogalev, Davide Comboni, Michael Hanfland, Natalia Dubrovinskaia, Leonid Dubrovinsky
Summary: A series of isostructural Ln(3)O(2)(CN3) compounds were successfully synthesized under high-pressure high-temperature conditions. The crystal structure of these compounds was determined and confirmed using SCXRD, XANES measurements, and DFT calculations. It was also found that the unit cell volumes and compressibility of the compounds were influenced by the lanthanide contraction phenomenon. Additionally, the stabilization of the CN35- guanidinate anion at ambient conditions provides new opportunities in inorganic and organic synthetic chemistry.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Jaimin U. Trivedi, Pallavi Ghalsasi, Somnath Ganguly, S. J. Jenepha Mary, C. James
Summary: The Raman spectra of Cinnarizine at high pressures up to 15.3 GPa show broadening of bands and increase in frequency, indicating changes in structure and chemical bonds. Some bands show clear changes in slope around specific pressures, suggesting phase transformations. These findings are supported by density function theoretical calculations.
JOURNAL OF MOLECULAR STRUCTURE
(2022)
Article
Chemistry, Physical
Li Zhang, Kaiyuan Shi, Yanlong Wang, Lei Su, Guoqiang Yang, Bolong Huang, Jun Kong, Xiao Dong, Zhong Lin Wang
Summary: Mechanoluminescence (ML) shows great promise in various applications, but accurately characterizing its process remains a challenge. Research indicates the crucial role of the coupling between manganese doping and surface vacancies in enhancing ML performance. Applying pressure over 4 GPa can suppress the formation of surface vacancies, leading to a decrease in ML intensity.
Review
Green & Sustainable Science & Technology
Zhong Chen, Hongzhen Chen, Yuanjian Xu, Mian Hu, Zhongting Hu, Junliang Wang, Zhiyan Pan
Summary: Hydrothermal treatment of renewable biomass and organic waste using supercritical water is a sustainable and efficient method for energy recovery, chemicals production, and harmless treatment. This review focuses on the reactors used in biomass conversion and waste treatment, discussing their merits and demerits and addressing their technical problems.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2023)
Article
Chemistry, Inorganic & Nuclear
Nishant N. Patel, Meenakshi Sunder
Summary: Results of high pressure Raman and ADXRD study on CsIBr2 show two phase transitions at 5 and 19 GPa, with bulk moduli of 10.9(8) GPa and 17.8(1) GPa for the orthorhombic and trigonal phases, respectively.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Ceramics
Abhinav Parakh, Mehrdad T. Kiani, Anabelle Colmenares, Andrew C. Lee, Guoyin Shen, Stella Chariton, Vitali B. Prakapenka, X. Wendy Gu
Summary: This study investigates the structural changes of Ni1-xBx metallic glass nanoparticles under high-pressure conditions using in situ high-pressure X-ray diffraction. The results show that the size and composition of the nanoparticles have an effect on their high-pressure behavior.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Chemistry, Multidisciplinary
Sebastiano Romi, Samuele Fanetti, Frederico Alabarse, Antonio M. Mio, Roberto Bini
Summary: Carbon nanothreads are new materials produced under high pressure conditions, synthesized by compressing crystals of small aromatic molecules and utilizing anisotropic stress. The presence of heteroatoms or unsaturation improves processability and tunes electronic properties, while controlled insertion of chromophores can tailor the optical and electronic properties of these mechanically extraordinary materials. The synthesis of double core nanothreads linked by azo groups is a fundamental step towards achieving nanothreads with tailored photochemical and photophysical properties.
Article
Agricultural Engineering
Peng Cheng, Yingchuan Zhang, Nianfang Ma, Lining Wang, Liqun Jiang, Zhen Fang, Yitong Wang, Xiangping Tan
Summary: Microbial fuel cell (MFC) has great potential in wastewater treatment and energy generation. This study reveals the electrochemical mechanism of extracellular anaerobic respiration in MFC inoculated with gram-positive Rhodococcus pyridinivorans HR-1. The MFC exhibits rapid recovery of currents on the anode, with redox peaks near -0.38 and -0.18 V. Blocking the biofilm-based pathway with a filter membrane did not prevent electricity generation in the HR-1 inoculated MFC, suggesting the presence of a self-secreted electron shuttle pathway.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yining Liang, Yingqiao Zhou, Richard Lee Smith Jr, Xinhua Qi
Summary: Ultra-thin wrinkled graphene-like nanosheets (GNs) were prepared via classical evaporation induced self-assembly (EISA) of 4-nitrocatechol as carbon precursor, followed by activation and calcination. The resulting GN-900 exhibited a specific capacitance of 367 F g-1 at 0.2 A g-1 and a rate capability of 228 F g-1 at 40 A g-1. Supercapacitors assembled with GN-900 showed specific energy densities of 11.5 Wh kg-1 at power densities of 89.8 W kg-1, with capacitance retention greater than 98% after 3000 cycles at 10A g-1. The materials prepared in this study demonstrated structural stability and favorable electrochemical performance for supercapacitor applications.
Article
Chemistry, Physical
Xiaoning Liu, Yicong Wang, Yiwei Tang, Richard L. Smith Jr, Yingying Xu, Yining Liang, Xinhua Qi
Summary: This study critically assesses the use of plant polyphenols for forming ordered mesoporous carbons (OMCs) via metal ion and bimetal ion cross-linking chemistry. The researchers found that the aromatic hydroxyl content, solubility, and molecular mass of the polyphenols are key factors in OMC formation. The metal-functionalized OMCs showed excellent performance in electrocatalytic reduction, catalytic hydrogenation, and as electrode materials for supercapacitors. The proposed techniques allow for the direct application of a wide range of plant polyphenols in environmental applications without further processing.
Article
Green & Sustainable Science & Technology
Jian Yang, Wen-jie Cong, Zongyuan Zhu, Zheng-diao Miao, Yi-Tong Wang, Michael Nelles, Zhen Fang
Summary: A magnetic bifunctional SrO-ZnO/MOF catalyst was synthesized for one-step biodiesel production from high acid value oils. The catalyst had both basicity and acidity, mainly composed of Sr3Fe2O6 and ZnO. The MOF support increased the catalyst's specific surface area by 3.7 times and provided magnetic separation capability. The catalyst exhibited high activity and resistance to free fatty acids, with a potential application in the biodiesel industry.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Physical
Yixuan Feng, Haixin Guo, Richard L. Smith Jr, Xinhua Qi
Summary: In this study, two-dimensional cobalt-metal-organic framework (Co-MOF, ZIF-L-Co) nanoplate arrays were prepared on nickel foam (NF) and transformed into hierarchical porous Co3O4 nanostructures through chemical etching and low temperature annealing. The resulting Co3O4/NF electrode materials exhibited improved charge diffusion, mass transfer, and efficient electrocatalytic oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA).
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Yicong Wang, Sisuo Zhang, Richard L. Smith, Xiaoning Liu, Xinhua Qi
Summary: In this study, ordered mesoporous carbon electrode materials containing La(OH)(3) and Fe3C components were prepared and used for efficient removal of nitrogen and phosphorus from water. The ordered pores facilitated electron transfer and provided voids for phosphate removal. The electrode material showed stability and selectivity in removing nitrogen and phosphorus, and maintained high efficiency under various conditions including pH and presence of multiple ions or seawater. This work provides a new strategy for treating eutrophic water in practical production.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Agricultural Engineering
Wen-jie Cong, Jian Yang, Jianguo Zhang, Zhen Fang, Zheng-diao Miao
Summary: Magnetic self-assembly metal-organic frameworks (MOFs) were used for the co-production of biodiesel and hydrogen from waste oils. The highly active MOF nanoparticles achieved 126.8% hydrogen yield in subcritical water. Continuous production of biodiesel and hydrogen with high yield was achieved by coupling alkali with MOF-derived carriers, showing great potential for biomass conversions to targeted biofuels.
BIOMASS & BIOENERGY
(2023)
Article
Agricultural Engineering
Jia-xuan Zhang, Xiao-le Liu, Li Wang, Zhen Fang
Summary: Microbial lipids were produced through a two-stage process using Cryptococcus curvatus to co-ferment rice and shrimp shells hydrolysates. By optimizing the biomass production and lipid content, high biomass yield and lipid content were achieved. The fatty acid composition of the lipids was found to be similar to that of typical vegetable oils.
BIORESOURCE TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Geliang Xie, Guoqiang Zhu, Tong Lv, Yifan Kang, Yuhan Chen, Zhen Fang, Lujiang Xu
Summary: The co-valorization of biomass and multiple solid wastes is important for both environmental protection and energy security. In this study, aromatic-rich biofuel was successfully produced from lignin and waste polyoxymethylene via catalytic copyrolysis process. The use of a commercial ?-Al2O3 catalyst showed good catalytic performance, and various characterizations and experiments were conducted to illustrate the synergism between the raw materials and the mechanism of aromatics formation. The results showed a positive synergistic effect between lignin and POM, leading to increased yields of biochar and bio-oil. Additionally, the suitable operating conditions were identified, and the use of POM as a precursor was found to promote deoxygenation reactions and improve bio-oil quality. However, long-term stability of the catalyst needs to be further improved due to coke deposits and acid sites loss.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2023)
Article
Green & Sustainable Science & Technology
Qing Yu, Tian-Ji Liu, Ya-Nan Zeng, Yi-Tong Wang, Jun-Guo Li, Yu-Ran Wang, Le-Le Kang, Rui Ji, Fu-Ping Wang, Xiao-Man Wang, Bao Liu, Shuang Cai, Zhen Fang
Summary: Electric furnace slag is a productive and element-rich material that can be used as a nutrient source for microalgae growth. This study investigated the regulation of growth and lipid synthesis of Chlorella pyrenoidosa in electric arc furnace slag leaching solution with or without citric acid to develop a cost-effective method for lipid production. The addition of electric arc furnace slag leaching solution with low heavy metal content and citric acid improved lipid accumulation and biomass content of C. pyrenoidosa. The study also identified the role of multiple metal ions in modulating enzyme activities and accelerating lipid synthesis.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Green & Sustainable Science & Technology
Taishi Dowaki, Haixin Guo, Richard Lee Smith Jr
Summary: Biochar catalysts with Lewis acid and Bronsted acid functionalities were prepared by ball-milling lignin-derived biochar with aluminum diacetate and thiomalic acid. The catalysts were used in the synthesis of 5-ethoxymethylfurfural and ethyl levulinate from glucose substrate in ethanol. The ratio of aluminum diacetate to thiomalic acid controlled the acid sites of the catalysts, which had a significant impact on product selectivity.
Article
Acoustics
Pengyun Liu, Zhilin Wu, Zhen Fang, Giancarlo Cravotto
Summary: This study aims to understand the kinetics and mechanisms of sonolytic degradation of four antibiotics in water and milk. The results show that the degradation of antibiotics follows pseudo-first order kinetics in both water and milk, with faster degradation in water than in milk. Factors such as ultrasonic frequency, power, temperature, and reaction volume affect the rate of antibiotic degradation. The oxidation by free radicals plays a dominant role in the degradation process, and the addition of H2O2 can accelerate the degradation. The residue concentrations after sonication meet the relevant maximum residue limit under certain conditions.
ULTRASONICS SONOCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Pei-dong Wu, Lanyun Li, Keping Wang, Hu Li, Zhen Fang
Summary: In this study, a Mo-BVO-TiCoNO-CoFeOxy photoanode with a nanowire structure was prepared for the first time, which efficiently converted bio-based benzyl alcohol to benzoic acid in water while coupling H-2 production. The nanowire structure increased the exposed active sites on the photoelectrode surface and enhanced the benzyl alcohol oxidation capacity. Additionally, the aspect ratio of the nanowires increased visible light absorption and the thermal effect increased H-2 production.
Article
Chemistry, Physical
Yixuan Feng, Kun Yang, Richard L. L. Smith Jr, Xinhua Qi
Summary: In this study, two-dimensional metal-organic framework (MOF) nanoarrays embedded with Ni/Co/Fe sulfide nanoclusters were used as electrocatalysts for efficient oxidation of 5-hydroxymethylfurfural (HMF) to produce 2,5-furandicarboxylic acid (FDCA). The as-prepared NiCoFeS-MOF catalyst achieved 100% HMF conversion, 99% FDCA yields, and high Faraday efficiencies. The combination of metal sulfide nanoclusters with 2D MOF nanoarrays increased the active surface area and improved electron transport for enhanced electrooxidation performance.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Yixuan Feng, Richard Lee Smith, Junyan Fu, Xinhua Qi
Summary: In this study, hollow Co3S4/Ni3S2 nanotube arrays were successfully synthesized and applied as electrodes for the electrocatalytic oxidation of biomass. The hollow structure of the nanotube arrays improved electron transport efficiency, expanded the specific surface area, and increased the access of reactants to catalytic sites.
Article
Chemistry, Physical
P. Belmonte, J. M. Garcia-Vargas, J. F. Rodriguez, I. Garrido, M. T. Garcia, M. J. Ramos
Summary: In this study, four polythiourethane films with different types of polyols and isocyanates were synthesized, characterized, and foamed. The results showed that the type of isocyanate greatly influenced the crystallinity and stiffness of the polymers, while the type of polyol modified the FT-IR spectra and the decomposition curve of the material with temperature. Furthermore, the choice of isocyanate also affected the properties of the foams obtained from the polymeric material.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Xutao Zhu, Jianguo Yan, Shouchun Liu, Fengling Zhu
Summary: This study experimentally assessed the hydrodynamic characteristics of supercritical-pressure R134a in a horizontal circular tube. It was found that the hydrodynamic characteristic curve of R134a under supercritical pressure does not have a negative-slope region but a transition region. The transition region becomes more evident with increasing heat flux, while it weakens with increasing pressure and inlet temperature. Moreover, the onset of the transition region shifts in the direction of high mass flow rate with increasing heat flux.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Stefania Mottola, Iolanda De Marco
Summary: In this study, corticosteroids were micronized with cyclodextrin using Supercritical Assisted Atomization (SAA), resulting in spherical micrometric particles with improved dissolution time.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Honghai Liu, Yu Xie, Zhilan Li, Xiaokai Zhang
Summary: This study compared the effects of supercritical carbon dioxide dewatering (SCD) and conventional kiln drying (CKD) at a temperature of 55 degrees C on the dewatering rate, moisture transfer and distribution, shrinkage, and stress characteristics of bamboo strips. The results showed that SCD had a faster dewatering rate and lower shrinkage compared to CKD, but was less effective in reducing drying stress in bamboo.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tahmasb Hatami, Ozan N. Ciftci
Summary: This study fills the gap in previous research by establishing a hierarchy of significance for factors affecting SFE profitability, providing a deeper understanding of how technical and economic factors impact profitability. The findings highlight that the SFE facility becomes profitable when the extractor capacity surpasses 42 L.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Tingshan Guo, Chuang He, Zhiyuan Liang, Qinxin Zhao
Summary: The initial oxidation behavior of Fe10Cr and Fe20Cr alloys in supercritical H2O and supercritical CO2 with O2 has been investigated. The results show that O2 has the highest adsorption energy on FeCr alloys and reacts faster than H2O and CO2.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Vikash Chandra Roy, Jin-Seok Park, Ahmed Redwan Haque, Md Sadek Ali, Hee-Jeong Lee, Byung-Soo Chun
Summary: This research aimed to valorize brewery spent grain (BSG) using subcritical water hydrolysis (SWH) modified by six different natural deep eutectic solvents (DES) and determining their bipotentialities. The findings showed that BSG hydrolysates obtained through DES-induced SWH contained high levels of sugars, proteins, flavonoids, phenolic compounds, and essential amino acids. The hydrolysates also demonstrated antimicrobial activities, and the presence of bioactive compounds was confirmed through FT-IR analysis. This comprehensive profiling of bioactive compounds from BSG using DES-mediated SWH can contribute to the efficient valorization of BSG for industrial purposes.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Kailiang Zhang, Hanyu Wang, Tong Liu, Zhu Wang, Lvxing Wang, Ping Fan, Feng Chen, Mingqiang Zhong, Bozhen Wu, Shanqiu Liu, Jintao Yang
Summary: This study investigates the influence of foam cell structure on the electromagnetic interference shielding performance of conductive polymer composite foam. The results suggest that foamed composites exhibit improved EMI shielding performance, and bimodal cell foams have higher electric conductivity but lower EMI shielding compared to uniform cell foams.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Jaromir Valtr, Petr Roztocil, David Dasek, Radek Musalek, Frantisek Lukac, Jakub Klecka, Marek Janata, Mariana Arnoult-Ruzickova, Eva Mistova, Ludek Jelinek, Petr Sajdl, Jan Macak
Summary: This paper focuses on the design of an experimental facility for in-situ electrochemical testing at supercritical water conditions, including the design of the electrode system and surface insulation coating for electrode leads.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
Article
Chemistry, Physical
Richard Djimasbe, Mikhail A. Varfolomeev, Nailya M. Khasanova, Ameen A. Al-Muntaser, Rustam R. Davletshin, Muneer A. Suwaid, Gazinur Z. Mingazov
Summary: This study confirms the capability of supercritical water to generate active hydrogen that interacts with different fractions in unconventional feedstocks, leading to synthetic oil production during hydrothermal reactions. The findings suggest that a maximum yield of 16.78% can be achieved at a temperature of 380 oC and a reaction time of 1-12 hours.
JOURNAL OF SUPERCRITICAL FLUIDS
(2024)
